The deck, while it may have some additional reinforcement, is for the most part structurally neutral with respect to the shrouds. My point is that moving the shrouds outboard will impose lateral loads at the deck level, while in the original configuration, lateral loads are lower in the hull, well below the deck.
I wanted to thank everyone for their knowledge, It was a crazy blonde question I asked my husband who thought I should ask the group. Not stepping backwards, i guess there are stupid questions.
Probably it will mess up the sheeting angle, but it might not be that critical depending on the jib, angle of attack, and the general sailing characteristics of boat--if the boat points poorly, it won't matter much. I am mystified why anyone would abandon the careful structural design of most production boats and move chainplates outboard. You understand that these are under incredible pressure when underway and you would need to ensure that load is properly transferred to the rest of the vessel's structures--this generally means fastening chainplates to bulkheads or knees that transfer the load widely to the hull. This is not a DIY thing for amateurs imho.
